Control of Washing Machines

Fuzzy logic




From the first washing tool...


 

..a broom with 4 fingers at the bottom to move the clothes around the bucket..


to the modern fully automated ones..

 




Now...

 



The Problem is?


Manual select the length of wash time..




Based on:

  • Amount

  • Degree


Fuzzy Logic



Solution:

 

greasy?

2 inputs:

how dirty?

  1. Degree of dirt

  2. Type of dirt

 

wash time degree of dirt ->

  type of dirt ->

Basic approach




How do the fuzzy controller makes "tough" decision?

by

RULES..

 

 cool :-)

 english

easy

intuitive

If (this) -> then (do this)

These are simple..

Fuzzy rules

1. If dirtness_of_clothes is Large and Type_of_dirt is Greasy then wash time is very long;
2. If dirtness_of_clothes is Medium and Type_of_dirt is Greasy then wash_time is long;
3. If dirtness_of_clothes is Small and Type_of_dirt is Greasy then wash_time is long;
4. If dirtness_of_clothes is Large and Type_of_dirt is Medium then wash_time is long;
5. If dirtness_of_clothes is Medium and Type_of_dirt is Medium
then wash_time is medium;

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